Update README.md, spelling (#21)

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Author: zacheller

README.md

@@ -427,7 +427,7 @@ jobs:
 
 ```
 
-You can make these changes in your repository by opening [`my-workflow.yml`](/.github/workflows/my-workflow.yml) in another browswer tab and [editing the file directly](https://docs.github.com/en/repositories/working-with-files/managing-files/editing-files). Make sure to select the `Commit directly to the main branch` option.
+You can make these changes in your repository by opening [`my-workflow.yml`](/.github/workflows/my-workflow.yml) in another browser tab and [editing the file directly](https://docs.github.com/en/repositories/working-with-files/managing-files/editing-files). Make sure to select the `Commit directly to the main branch` option.
 
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